drm: add KGDB/KDB support
Implement the callbacks for KDB entry/exit via the drm helpers.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 1121f77..10f7d03 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -60,6 +60,8 @@
/* Move the crtc on the current fb to the given position *optional* */
int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb);
+ int (*mode_set_base_atomic)(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb, int x, int y);
/* reload the current crtc LUT */
void (*load_lut)(struct drm_crtc *crtc);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index f0a6afc..f22e7fe 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -32,6 +32,8 @@
struct drm_fb_helper;
+#include <linux/kgdb.h>
+
struct drm_fb_helper_crtc {
uint32_t crtc_id;
struct drm_mode_set mode_set;
@@ -78,6 +80,7 @@
struct drm_fb_helper {
struct drm_framebuffer *fb;
+ struct drm_framebuffer *saved_fb;
struct drm_device *dev;
struct drm_display_mode *mode;
int crtc_count;
@@ -126,5 +129,7 @@
bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
+int drm_fb_helper_debug_enter(struct fb_info *info);
+int drm_fb_helper_debug_leave(struct fb_info *info);
#endif
